The Speedo Women's Hydro Comfort 4.0 Water Shoe is a top-selling choice for synchronized swimming socks on Amazon. These socks are designed to provide maximum comfort and support in the water. They feature a lightweight and breathable construction, with a durable rubber sole for added traction. The Hydro Comfort 4.0 Water Shoe also has a quick-drying design, making it perfect for synchronized swimming. With its stylish design and excellent performance, it's no wonder this shoe is a best-seller.